hydrocephalus


hy·dro·ceph·a·lus

noun \-ˈse-fə-ləs\

Definition of HYDROCEPHALUS

:  an abnormal increase in the amount of cerebrospinal fluid within the cranial cavity that is accompanied by expansion of the cerebral ventricles and often increased intracranial pressure, skull enlargement, and cognitive decline

Variants of HYDROCEPHALUS

hy·dro·ceph·a·lus also hy·dro·ceph·a·ly \-lē\

Origin of HYDROCEPHALUS

New Latin hydrocephalus, from Late Latin, hydrocephalic, adjective, from Greek hydrokephalos, from hydr- + kephalē head — more at cephalic
First Known Use: 1670

hy·dro·ceph·a·lus

noun \-ˈsef-ə-ləs, British also -ˈkef-\   (Medical Dictionary)
plural hy·dro·ceph·a·li \-ˌlī\

Medical Definition of HYDROCEPHALUS

: an abnormal increase in the amount of cerebrospinal fluid within the cranial cavity that is accompanied by expansion of the cerebral ventricles, enlargement of the skull and especially the forehead, and atrophy of the brain

Illustration of HYDROCEPHALUS

hydrocephalus

noun    (Concise Encyclopedia)

Accumulation of cerebrospinal fluid (CSF) in the ventricles (cavities) of the brain. Hydrocephalus is caused by overproduction of CSF, congenital blockage that prevents drainage (see neural tube defect), or complications of head injuries or infections. Normally, CSF circulates through the brain and spinal cord and drains into the circulation. In infants and young children, hydrocephalus causes the brain and skull to enlarge because the fontanels have not yet closed. Without surgery to divert the excess fluid into the blood or abdomen, accumulating fluid eventually compresses the brain, causing convulsions, intellectual disability, and death.

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